When: 2009-10-22

Collection location: Point Reyes National Seashore, Marin Co., California, USA [Click for map]

Who: Ken Stavropoulos (pennybun)

No specimen available

Ok, this was the only bolete i have found ,it is from the rain of last month, NO NEW ONES YET… near coastal pines


Proposed Names

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= Observer’s choice
= Current consensus


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By: Ken Stavropoulos (pennybun)
2009-10-23 17:24:12 CDT (-0400)

thanks for the update..

grandedulis is the newly published name for our common local form.
By: Debbie Viess (amanitarita)
2009-10-22 20:41:17 CDT (-0400)

one way to tell them apart from the European and Eastern US edulis is that the pore surface turns a ruddy brown with age. see Arora and Simonini’s porcini paper in the October issue of Economic Botany for more taxonomic details.

Boletus edulis var. grandedulis
By: Ken Stavropoulos (pennybun)
2009-10-22 17:27:51 CDT (-0400)

I used this nomenclature as it appears to be the community consensus. Last year, after posting multiple specimens from this location as Boletus edulis, the community changed it to var. grandedulis.

How do you know
By: Johannes Harnisch (Johann Harnisch)
2009-10-22 14:21:03 CDT (-0400)

it is Variety Grand edulis?